Registration Dossier
Registration Dossier
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EC number: 233-265-8 | CAS number: 10102-05-3
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
The 48-hour EC50 was determined to be 1.7 mg test item L-1.
Key value for chemical safety assessment
Additional information
An acute Daphnia magna study Is available for palladium dinitrate following OECD guideline 202 (Enste-Diefenbach 2004). Nine test concentrations were used and these were analysed using ICP-OES. Flocculated material was observed and was dissolved by concentrated hydrochloric acid before analysis. Results were based on geometric mean values of analytically determined concentrations at test start and after 48 hours. The 48-hour EC50 was determined to be 1.7 mg test item L-1. Dark brown flocculate was observed in the test solutions at 24 and 48 hours, therefore it is assumed that this may also have contributed to the toxicity.
For palladium a single, worst case PNEC value has been derived for each environmental compartment, to cover all palladium substances. The PNEC has been derived based on the most toxic palladium substance, diamminedichloropalladium. Therefore, although toxicity results for diamminedicloropalladium are likely to overestimate the toxicity of palladium substances that do not contain a chloro ligand, this data is included in the dossiers for all palladium substance as it was taken into account in PNEC derivation.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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